add integeration tests

producer/api/src/producer_impl.cpp

producer/event_monitor_producer/src/common.h

producer/event_monitor_producer/src/event_monitor_error.h

producer/event_monitor_producer/src/eventmon_main.cpp

...ucer/event_monitor_producer/src/folder_event_detector.cpp

producer/event_monitor_producer/src/folder_event_detector.h

.../event_monitor_producer/src/system_folder_watch_linux.cpp

...er/event_monitor_producer/src/system_folder_watch_linux.h

...vent_monitor_producer/src/system_folder_watch_windows.cpp

.../event_monitor_producer/src/system_folder_watch_windows.h

...event_monitor_producer/unittests/mock_eventmon_config.cpp

...ent_monitor_producer/unittests/mock_system_folder_watch.h

...event_monitor_producer/unittests/test_eventmon_config.cpp

...monitor_producer/unittests/test_folder_event_detector.cpp

tests/automatic/CMakeLists.txt

tests/automatic/producer/CMakeLists.txt

...s/automatic/producer/file_monitor_producer/CMakeLists.txt

...s/automatic/producer/file_monitor_producer/check_linux.sh